Warp-leasing machine.



No. 861;.284. PATENTED JULY 30, 1907. H. 'HOLGATE.

WARP LEASING MACHINE.

APPLICATION FILED AUG.4. 1905.

r": NORRIS PETERS ca. WASHINGTON. n. :4

STATES PATENT orrros.

HARTLEY HOLGATE, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF ONE-TENTH TO DENBY HUDSON, OF PHILADELPHIA, PENNSYLVANIA.

WARP-LEASING MACHINE.

Specification of Letters Patent.

Patented July 30, 1907.

7 Application filed August 4,1905. $erial No. 272,711.

To all whom it may concern:

Be it known that I, HARTLEY HOLGATE, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Warp- Leasing Machines, of which the following is a specification.

The object of my invention is to so construct a warp leasing machine as to provide for the ready application of the warp threads to, or their removal from, the comb or reed whereby the separation of the warp threads for the insertion of the leasing rods is effected; to improve the construction of the holder for the bars of said comb or reed and of the mechanism for determining the extent of its lateral movement, and to simplify and cheapen the construction of the bars themselves.

This object I attain in the manner hereinafter set forth, reference being had to the accompanying drawing, in which Figure 1, is a front view, partly broken away, of sufficient of a warp leasing machine to illustrate my present invention; Fig. 2, is an end view of the same; and Fig. 3, is a transverse section on the line aa, Fig. 1.

1 represents a box or trough open at the top and adapted for the reception and guidance of the block 2, which carries the vertically projecting bars 3 of the comb or reed which acts upon the sets or groups of warp threads for the purpose of separating the threads of each group for the insertion of the leasing rods between them. The block 2 can move laterally within the trough 1, being mounted upon anti-friction rollers 4 on the bottom of the trough in order to facilitate such movement, which is restricted by stop arms 5 at the ends of the trough, these arms serving, by contact with the end bars 3 of the comb or reed, to limit the lateral movement of the same in either direction. Each bar 5 is secured to a shaft 6, which is mounted in a bracket 7 at the end of the trough 1, and is longitudinally adjustable therein, being secured in position after adjustment by means of a set screw 8.

The block 2 is divided vertically into longitudinal halves, each recessed, as at 9, so as to form chambers for the reception of the group or series of bars 3 as shown in Fig. 3; these recesses alternating with deeper recesses 10, which receive coiled spring bar supports or retainers 11, of which there are, in the present instance, three, located one above another, each retainer comprising a pair of springs, also located one above the other and overlapping so as to interlock as shown in Fig. 1, the bars 3 passing through the coils of these two sets of springs and being. held thereby in their proper lateral relation one to another, which relation can be changed by expanding or contracting the springs, as will be readily understood. The walls of the recesses 10 conform to the shape of the springs,

and thus serve to retain the same in their proper position and to guide them in their movements of expansion and contraction, and the use of the three sets of springs effectually prevents any lateral swaying or twisting of the lower portions of the bars 3, and insures the maintenance of the same in the desired vertical position. I

Each of the bars 3 is flanked by a plate 12, preferably thinner than the bar, and secured thereto by soldering, brazing, or other available means, said plate 12 being shorter than the bar 3 and projecting, to any desired extent, beyond the securing agent, so that its free end forms, in connection with each bar 3, a hook 13, which, when the hooked side of the bar 3 is pressed laterally against a group of warp threads located between it and the adjoining bar, will, when there is vertical movement of the bar and threads relatively to one another, engage with one or more of said threads and separate the same from the remaining threads of the group, so that a leasing rod can be passed between the two sets of threads in the usual manner.

In order to permit of the ready insertion of the warp threads between the bars of the comb or reed before the leasing operation and the equally ready withdrawal of said threads from between the bars, after the leasing operation has been concluded, said bars 3 are not permanently connected at the top, and thus provide for the ready insertion or removal of the warp threads, but in order to retain the bars in their proper relative positions during the operation of the leasing machine, I provide a clamp for the upper ends of the bars, said clamp comprising a box 15, one side of which constitutes the fixed jaw of the clamp and is preferably provided with a lining 16 of rubber, or other elastic or semi-elastic material, for bearing upon the bars 3. The similarly lined movable jaw 17 of the clamp is acted upon by a series of screw stems 18 adapted to threaded openings in depending hangers 19 at the front of the box 15, the inner ends of these screw stems being connected to the jaw 17 by means of ball and socket joints 20, so that the jaw is compelled to move back and forth with the screw stems, but can swing to a limited extent on the inner ends of the same.

The outer end of each screw stem 18 is provided with a worm wheel 21, which meshes with a worm 22 on a shaft 23, the latter being free to turn in bearings at the opposite ends of, the box 15 and being provided with a crank wheel 24, or other suitable means, by which it can be readily turned so as to simultaneously operate all of the screw stems 18 and thus project or retract the movable jaw 17 of the clamp. I thus provide for the proper and uniform clamping of all of the bars 3, of the series, from end to end of said series. When it is desired to release the bars, for the applicationor removal of a warp, the shaft 23 can be turned backwardly so as to withdraw the movable jaw and thus permit the clamping box to be lifted free from the bars 3, said clamping box being mounted so as to slide vertically on guide bars 25 at the opposite ends of the machine, and said bars having collars 26 which limit the descent of the clamping box.

Having thus described my invention, I claim and desire to secure by Letters Patent:- 7

l. The combination of the trough or box and the laterally movable comb or reed block mounted'therein, with stops for said reed block comprising arms at opposite ends of the box, said arms being longitudinally adjustable in respect to the trough, substantially as specified.

2. The combination of the trough or box and the laterally movable comb or reed block mounted therein, with stops for said reed block comprising arms longitudinally adjustable in-respect to the trough and capable of turning so as to engage with or be disengaged from the bars of the comb or reed, substantially as specified.

3. A comb or reed for Warp leasing machines having bars with plates secured throughout the greater portion of their length alongside of the bars, said plates having projecting ends so as to form, in conjunction with the bars, downwardly projecting warp-engaging hooks, in combina tion with means for releasably clamping the upper ends of the bars, and coiled springs between whose convolutions project the lower free ends of the bars substantially as specified.

4. The combination, in awarp leasing machine, of a comb or reed having bars disconnected at their outer ends, and a removable clamp for engaging said bars during the operation of the machine, said clamp having a movable jaw, a series of screw stems acting thereon, and means for'operating said screw stems simultaneously, substantially as specified.

5. A comb or reed forwarp leasing machines having 'bars with plates secured to one side of said bars said plates having projecting ends to form downwardly projecting warp engaging hooks in combination with means for releasably clamping the upper ends of the bars and coiled springs between whose convolutions project the lower free ends of the bars, substantially as described.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

HARTLEY HOLGATE.

Witnesses WILLIAM F. BEA'LON, \VALTER CHISM. 

